diff --git a/doc/fixes36.3 b/doc/fixes36.3
index 6c858a823..961ed254f 100644
--- a/doc/fixes36.3
+++ b/doc/fixes36.3
@@ -66,6 +66,7 @@ thrown or kicked light source (lit lamp, candle, oil) should emit light as it
 unlike watching a monster trying to swap out a cursed weapon for some other
 	weapon and failing, watching it wield a cursed weapon didn't report
 	that weapon becoming welded to the monster's hand/claw/whatever
+wizard-mode: wish for hidden monsters that pass is_hider test
 
 
 Fixes to Post-3.6.2 Problems that Were Exposed Via git Repository
@@ -116,6 +117,7 @@ classify sources as released, beta, or work-in-progress via NH_DEVEL_STATUS
 	rather than just released vs beta via BETA
 if you reach the edge of a level (relatively uncommon) and try to move off,
 	report that you can't go farther if the 'mention_walls' option is set
+wizard-mode: display effect to show where an unseen wished-for monster landed
 
 
 NetHack Community Patches (or Variation) Included
diff --git a/include/extern.h b/include/extern.h
index 15af73081..c8f5276f0 100644
--- a/include/extern.h
+++ b/include/extern.h
@@ -361,6 +361,7 @@ E void FDECL(newsym, (int, int));
 E void FDECL(newsym_force, (int, int));
 E void FDECL(shieldeff, (XCHAR_P, XCHAR_P));
 E void FDECL(tmp_at, (int, int));
+E void FDECL(flash_glyph_at, (int, int, int));
 E void FDECL(swallowed, (int));
 E void FDECL(under_ground, (int));
 E void FDECL(under_water, (int));
diff --git a/src/display.c b/src/display.c
index d29ea1a02..e77fcc27b 100644
--- a/src/display.c
+++ b/src/display.c
@@ -1067,6 +1067,30 @@ int x, y;
     } /* end case */
 }
 
+/*
+ * flash_glyph_at(x, y, glyph)
+ *
+ * Briefly flash between the passed glyph and the glyph that's
+ * meant to be at the location.
+ */
+void
+flash_glyph_at(x, y, tg)
+int x, y, tg;
+{
+     int i, glyph[2];
+
+     glyph[0] = tg;
+     glyph[1] = (level.flags.hero_memory)
+                    ? levl[x][y].glyph
+                        : back_to_glyph(x, y);
+     for (i = 0; i < 15; i++) {
+         show_glyph(x, y, glyph[i % 2]);
+         flush_screen(1);
+         delay_output();
+     }
+     newsym(x, y);
+}
+
 /*
  * swallowed()
  *
diff --git a/src/muse.c b/src/muse.c
index 9308c1013..9bf71d8d1 100644
--- a/src/muse.c
+++ b/src/muse.c
@@ -1957,7 +1957,7 @@ struct monst *mtmp;
 #ifdef CLIPPING
     cliparound(mtmp->mx, mtmp->my);
 #endif
-    show_glyph(mtmp->mx, mtmp->my, mon_to_glyph(mtmp, rn2));
+    show_glyph(mtmp->mx, mtmp->my, mon_to_glyph(mtmp, rn2_on_display_rng));
     display_self();
     You_feel("aggravated at %s.", noit_mon_nam(mtmp));
     display_nhwindow(WIN_MAP, TRUE);
diff --git a/src/read.c b/src/read.c
index a6aca2706..1e385ad0e 100644
--- a/src/read.c
+++ b/src/read.c
@@ -2440,7 +2440,7 @@ struct _create_particular_data {
     char monclass;
     boolean randmonst;
     boolean maketame, makepeaceful, makehostile;
-    boolean sleeping, saddled, invisible;
+    boolean sleeping, saddled, invisible, hidden;
 };
 
 boolean
@@ -2470,6 +2470,10 @@ struct _create_particular_data *d;
         d->invisible = TRUE;
         (void) memset(tmpp, ' ', sizeof "invisible " - 1);
     }
+    if ((tmpp = strstri(bufp, "hidden ")) != 0) {
+        d->hidden = TRUE;
+        (void) memset(tmpp, ' ', sizeof "hidden " - 1);
+    }
     /* check "female" before "male" to avoid false hit mid-word */
     if ((tmpp = strstri(bufp, "female ")) != 0) {
         d->fem = 1;
@@ -2524,9 +2528,9 @@ create_particular_creation(d)
 struct _create_particular_data *d;
 {
     struct permonst *whichpm = NULL;
-    int i, firstchoice = NON_PM;
+    int i, flashglyph, firstchoice = NON_PM;
     struct monst *mtmp;
-    boolean madeany = FALSE;
+    boolean madeany = FALSE, doflash = FALSE;
 
     if (!d->randmonst) {
         firstchoice = d->which;
@@ -2555,6 +2559,7 @@ struct _create_particular_data *d;
             /* otherwise try again */
             continue;
         }
+        flashglyph = mon_to_glyph(mtmp, rn2_on_display_rng);
         /* 'is_FOO()' ought to be called 'always_FOO()' */
         if (d->fem != -1 && !is_male(mtmp->data) && !is_female(mtmp->data))
             mtmp->female = d->fem; /* ignored for is_neuter() */
@@ -2572,14 +2577,25 @@ struct _create_particular_data *d;
         }
         if (d->invisible) {
             int mx = mtmp->mx, my = mtmp->my;
+
             mon_set_minvis(mtmp);
             if (does_block(mx, my, &levl[mx][my]))
                 block_point(mx, my);
             else
                 unblock_point(mx, my);
+            doflash = TRUE;
+        }
+        if (d->hidden && is_hider(mtmp->data)) {
+            mtmp->mundetected = 1;
+            doflash = TRUE;
         }
         if (d->sleeping)
             mtmp->msleeping = 1;
+        if (doflash) {
+            if (wizard && cansee(mtmp->mx, mtmp->my))
+                if (!canseemon(mtmp) && !sensemon(mtmp))
+                    flash_glyph_at(mtmp->mx, mtmp->my, flashglyph);
+        }
         madeany = TRUE;
         /* in case we got a doppelganger instead of what was asked
            for, make it start out looking like what was asked for */